How many James Sweeney census records do you have?

We have 7232 US Census records for James Sweeney, from 1900 to 1950, across 50 states and DC.

What's in a James Sweeney census record?

You'll see James's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow James Sweeney's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.

Are James Sweeney census records free?

Yes. All James Sweeney census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover James Sweeney?

We have James Sweeney records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters to narrow your results.

How do I find James Sweeney in the census?

Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.

What is the Model Tree for James Sweeney?

The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.

Where does the census data come from?

All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

James Sweeney — US Census Records & Model Tree

We found 7232 free census records for James Sweeney across 6 census years (1900–1950), in 50 states and DC and 901 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

James Sweeney Census Records by State & County

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Showing of 7232 records for James Sweeney US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	James H Sweeney	21	Worcester-County, Massachusetts	Massachusetts	Traveling Salesman	Son
1940	James Sweeney	35	Ulster-County, New York	New York	Same Place	Son
1930	James Sweeney		Erie, New York	New York	Fireman	Son
1940	James Sweeney	24	New-York-County, New York	New York	Elevator Op	Son
1940	James A Sweeney	29	Lucas-County, Ohio	Michigan	Accountant	Head
1940	James Sweeney	36	Lackawanna-County, Pennsylvania	Pennsylvania	Accountant	Son
1940	James Sweeney	37	Suffolk-County, Massachusetts	Massachusetts	Baggageman	Head
1940	James R. Sweeney	31	Wayne-County, Michigan	Michigan	Laborer	Head
1940	James M. Sweeney	21	Halifax-County, Virginia	Virginia	Farmer	Head
1940	James Sweeney	22	Luzerne-County, Pennsylvania	Pennsylvania	New Worker	Son
1920	James Sweeney		Camden, New Jersey	New Jersey	Inspector	Head
1920	James Sweeney		Philadelphia, Pennsylvania	Ireland	Laborer	Head
1940	James A. Sweeney	53	Ringgold-County, Iowa	Missouri	Farmer	Head
1940	James Sweeney	35	Bronx-County, New York	New York	Porter	Head
1930	James Sweeney		New York, New York	Ireland	Operator	Head
1940	James J. Sweeney	63	San-Francisco-County, California	California	Stevedore	Head
1940	James Sweeney	56	Queens-County, New York	Pennsylvania	Laborer	Head
1930	James Sweeney		Luzerne, Pennsylvania	Ireland	—	Head
1920	James Sweeney		New York, New York	New York	Waiter	Son
1910	James Sweeney		New York, New York	Ireland	Builder	Head
1940	James Sweeney	18	Erie-County, New York	New York	New Worker	Son
1940	James Sweeney	10	Lackawanna-County, Pennsylvania	Pennsylvania	—	Son
1940	James M. Sweeney	13	Middlesex-County, Massachusetts	Massachusetts	—	Son
1940	James A. Sweeney	43	Hillsborough-County, New Hampshire	New Hampshire	Asst. Supt.	Head
1910	James Sweeney		Essex, Massachusetts	New York	Apprentice	Son
1940	James Sweeney	16	Fairfax-County, Virginia	Virginia	—	Son
1940	James Jr. Sweeney	18	Franklin-County, Ohio	Ohio	New Worker	Son
1940	James H. Sweeney	42	Franklin-County, Ohio	Ohio	Laborer	Head
1940	James Sweeney	17	Frederick-County, Maryland	Maryland	Butcher	Son
1940	James Sweeney	10	Martin-County, Kentucky	Kentucky	—	Son

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About James Sweeney US Census Records & Model Tree

We've indexed 7232 free, proprietary US Census records for James Sweeney across 1900–1950, covering 50 states and DC: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Each record includes our Model Tree — a longitudinal reconstruction that links the same person across census decades using machine learning (XGBoost record linkage). Every link carries a confidence score: Verified (≥0.99), Confirmed (≥0.95), or Linked (lower confidence). This tells you not just what the census says, but how reliably we've connected records across time.

Every record also shows the full household — who James lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.

How we build the Model Tree. YourRoots independently indexes US Census records from NARA microfilm and links persons across decades using XGBoost-based record linkage. Each link's confidence is a per-pair match score from the model. Household corroboration (co-residents appearing on the same census pages in multiple years) strengthens the signal. The Model Tree is not a family tree submitted by users — it's reconstructed from the census data itself.

Last updated: July 30, 2026

Frequently Asked Questions

: We have 7232 US Census records for James Sweeney, from 1900 to 1950, across 50 states and DC.
: You'll see James's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.
: Census records are a snapshot of a family every 10 years. You can follow James Sweeney's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.
: Yes. All James Sweeney census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.
: We have James Sweeney records from the 1900 through 1950 US Federal Census, across 50 states and DC. Use the year and state filters above to narrow your results.
: Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.
: The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.
: All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

Other Sweeney US Census Records

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